mj-social-font-family.mjml

<mjml>
  <mj-body>
    <mj-section>
      <mj-column>
        <mj-social font-family="Roboto">
          <mj-social-element name="youtube" href="https://jolimail.io" title="youtube element" target="_self">
            Youtube
          </mj-social-element>
          <mj-social-element background-color="red" src="https://www.mailjet.com/images/theme/v1/icons/ico-social/github.png" text-decoration="underline">
						Other
          </mj-social-element>
        </mj-social>
      </mj-column>
    </mj-section>
  </mj-body>
</mjml>